Derdy vs Shieldy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Derdy
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Learn German articles the fun way - with Derdy! Mastering German articles (der, die, das) is tricky - there aren't perfect rules, just practice. That's where Derdy comes in! Our friendly hedgehog mascot helps you learn through interactive games, smart features, and zero pressure. Four Practice Modes - Chilled Mode - Swipe to practice at your own pace (no stress!) - Timed Mode - Race against the clock for bonus points - Streak Mode - How many can you get right in a row? - Review Mode - Focus on your mistakes until they stick Smart Features - Speak or type any German word - instantly discover its article - Learn plurals and translations (Premium) - Double-tap words to save favorites - Organize your vocabulary in custom folders (Premium) - Generate study PDFs to review offline (Premium) - Deep-dive into any word with detailed information - Add personal notes to words - perfect for teachers and students! Built for Everyone - Interface available in 25 languages - learn German even if you don't speak it yet! - Works offline thanks to smart fallback technology - Zero ads, zero data collection - just learning - Free to try with optional Premium subscription Why Derdy? Because German articles don't follow strict rules - they need practice. Derdy makes that practice fun, not frustrating. Whether you're a beginner tackling your first nouns or a teacher building study materials, we've got you covered. Try it free today and let Derdy guide you! Premium unlocks folders, PDFs, and translations - but we're happy to have you either way! Privacy policy: https://derdy.at/privacy.html Terms of Use: https://derdy.at/terms.html
Shieldy
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Shieldy Safe Stories • Life Skills • A Family-Friendly Digital Guide Designed to help children learn, explore, and grow with confidence, Shieldy turns everyday life skills into fun experiences through short stories, mini activities, and positive guidance. Friendships, personal boundaries, digital safety, school anxiety, and more… All presented in a warm, colorful world with language children can easily understand. For Kids Interactive Story Adventures • Friendship • Personal boundaries • Safe communication with strangers • Digital safety • School and social anxiety • Values and empathy • Love for animals Every topic is supported with stories, choices, and mini interactive moments. Safe Learning Experience • Mini questions after each story • Celebration moments for correct answers • Supportive guidance for mistakes • A “mistakes help us learn” mindset Gamified Progress System • Shield points • Level progression • Achievement badges • Certificates and rewards • Daily goals and mini missions Accessible & Comfortable Experience • Text-to-speech support (TTS) • Early reader mode • Calm reading experience • “Continue where you left off” feature Weekly Mini Recaps Fun and lightweight reminders to help children remember what they’ve learned. For Parents Shieldy is more than a children’s app. It also includes a powerful and easy-to-understand Parent Guide. Weekly Insights • Activity tracking • Level progress • Recent activity summaries • A quick “Where are we now?” overview Multiple Child Profiles • Support for multiple children • Badge collection system • Personalized progress tracking for each child Daily Focus System Choose which life skills you want to strengthen this week. Shieldy adapts recommendations based on your selected focus areas. Growth Journal • Daily learning summaries • Topic-based progress tracking • Small at-home family suggestions Quiz & Struggle Analysis See which topics your child struggles with and start healthier conversations at home. Safe Parent Area • Parent lock • Multi-language support • Secure access controls Shieldy Plus More personal. Smarter. More powerful. With Plus subscription: • AI-powered personalized stories • Unlimited practice experience • Advanced insights and emotional trends • Conversation follow-up suggestions • Story personalization with school, toys, and interests • Premium badges and custom themes • Full yearly growth map Most of the core experience remains free to use. Premium features are always clearly marked inside the app. Privacy & Safety Shieldy is designed to create a safe digital experience for families. The app focuses on learning, awareness, and everyday life skills. Shieldy is not a replacement for medical diagnosis or professional support. A Small Story Can Build Great Confidence One story. One question. One brave step. Armored for the future, ready for the world. --- Legal Information • Privacy Policy: https://gist.githubusercontent.com/esatyilmazco/19807d317147020bdf46874e3998b9a0/raw/privacy_policy.md • Terms of Use (EULA): https://gist.githubusercontent.com/esatyilmazco/19807d317147020bdf46874e3998b9a0/raw/terms_and_eula.md
Screenshots
Verdict
The clearest difference is device support: Derdy at 3 against Shieldy's —. On price, in-app purchases and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Derdy sells 2 in-app purchases, starting at $2.99 per month and Shieldy sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Derdy | Shieldy |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | — |
| Ads | No | — |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod — better | — |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 84 MB | 110 MB |
| Age rating | 9+ | 4+ |
| Developer | Mohamed Amine Kouki | ESATCAN YILMAZ |
In-app purchases
Derdy
- Monthly Premium Subscription$2.991 Month
- Yearly Premium Subscription$14.991 Year
Shieldy
- Shieldy Premium$9.991 Month
- Shieldy Premium$89.991 Year









